US739996A - Linotype-machine. - Google Patents

Description

No. 739,996. PATENTED SEPT, 29, 1903. P. T. DODGE.

LINOTYPE MACHINE.

APPLICATION FILED mm '10, 1903. no MODEL. 2 sugrs-sngm 1.

0? m5 ww 7/ No. 739,996. PATEN'IED SEPT. 29, 1903.

P. TPDODGEL LINOTYPB MAGHINE.

APPLIOATION FILED JUNE 10, 1903. N0 MODEL. I I 2 SFEETS-SHBBT 2.

MA/WZL are. 739,996.

' UNiTED STATES iatented. September 29,1903,

PATENT-- OFFICE.

FPHILIP T. DODGE, OF WASHINGTON; DISTRICT OF COLUMBIA, ASSIGNOR TO MERGENTHALER LINOTYPE COMPANY, A CORPORATION OF NEW YORK.

SPECIFICATION formingpart of Letters Patent No; 739,996, dated September 29, 1903.

Application filed June 10,1903. Serial No. 169.838. (No model.)

To all whom it mwy concern: I I

Be it known, that I, PHILIP T. DODGE, of WVashington, District of Columbia, have invented a newand useful Improvement in merce, having the general construction and arrangement of parts represented in United States Letters Patent No. 557,000, wherein the slug or linotype is cast in a slotted mold mounted in a vertical and intermittingly-rotating wheel. The mold stands in a horizontal position during the casting operation, after which the wheel turns, carrying. the mold and the base of the slug past a fixed trimmingknife, which determines the height of the slug, the motion continuing until the mold stands in a vertical position with the contained slug directly in front of an ejector-blade which advances from the rear, pushing the slug or linotype before it out of the mold and between stationary knives for trimming its out side facesinto a receiving-galle y at the front. The slugs, which frequently adhere tightly to the interior of the mold,must be trimmed with extreme accuracy. In the machines heretofore constructed it frequently happened that the pressure applied by the ejector to expel the slug would cause the mold-wheel and mold to spring forward, the result being an increased resistance to the delivery of the slug and the presentation of the slug inaccurately to the trimming-knives and sometimes a permanent springing of the Wheel, so that the base of the mold was not carried closely against the rear knife. The molds are commonly built up of a body portion screwed to the wheel, a vertically-adjustable cap portion, and two intermediate liners which determine the width and length of the slot, and thereby the thickness and length of the slug.

In practice the pressure applied to eject a strongly-adhering slug tends to loosen or displace the mold in relation to the disk and to disturb the proper relations between the cap,

body, and liners. The parts are also disturbed occasionally by the pressure of the ejector-blade if it chances to be out of adjust ment. .To overcome these difliculties, I provide. a rigid banking surface-or surfaces, against which the mold is rigidly supported at the front during the ejection of the slug.

Referring tothe drawings, Figure 1 represents a horizontal section through the moldwheel and adjacent parts of a linotype-1nachine having my improvement embodied therein. Fig. 2 is an elevation looking edgewise against the mold-wheel and adjacent parts in the ejecting position, with the mold seated against the supports or banking-pieces. Fig. 3 is a horizontal section on the line 3 3 of Fig. 2. Fig. 4 is a face view looking for ward from the face of the mold toward the trimming-knives and adjacent parts.

. Referring to the drawings, A represents the slotted mold, rigidly secured in the vertical wheel 13, which is mounted to turn on an arm extending laterally on the horizontal slide 0. The mold-disk receives an intermitting rotation from the driving-pinion D, and the slide C is moved forward and back by the usual cam mechanism, first, when the mold is in thecasting position, and, second, when it is in position for the ejection of the slug.

E represents the stationary back knife for trimming the base of the slug as it is carried by the passing mold.

F F represent the two vertical parallel knives, located directly in front of the mold, for the purpose of removing any fins or burs from theforward edge of the outgoing slug, insuring the uniform thickness of its body portion.

G represents the horizontal ejector-blade, guided in the frame behind the mold-wheel and operated bythe usual connections. After the slug has been cast in the mold the disk revolves, carrying the mold and the contained slug past the edge of the knife E, which trims the base of the slug flush with the mold. The disk continues its rotation until the mold assumes a vertical position directly between the ejectorblade and the front trimmingknives, as shown in Fig. 1. As soon as the slug out of the matrices and in order also to bring the wheel in position to carry the rear face of the mold closely against the back knife E. lVhen the mold has reached the ejecting position, (shown in Fig. 1,) it is carried forward by the movement of the slide C in order to present its front edge and the contained slug as near as possible to the edges of the knives F, so that the slug may be accurately guided between them.

The foregoing parts are constructed and operate in the ordinary manner.

During the ejection of the slug the mold A,

1 which is built up of several parts, is unsupported at the front or, in other words, is supported wholly by the wheel to which its body portion is screwed. \Vhen, therefore, the pressure is applied by the ejector to expel the slug, there is a tendency to spring the mold forward, to push the mold forward out of the disk, and to push the cap or outer portion of the mold away from the lower portion. It is to overcome this difliculty that my invention is intended.

In the form shown my improvement consists of two lugs or banking-pieces I I, rigidly seated in the main frame of the machine, preferably beyond the ends of the side knives F, and in such position as to afford adirect support or hearing for the two ends of the mold at the front side.

It will be observed that when the mold reaches the ejecting position and is carried forward both its cap and its body portion bear at the two. ends on their front faces firmly against the supports I. \Vhen the mold is thus supported, it is prevented from springing forward, and consequently the wheel is relieved from strain and the pressure prevented from displacing the mold or separating its members.

The essence of the invention lies in providing firm supports against which the mold as a whole may be seated and sustained during the ejection of the slug, and it is manifest that the support may be varied in form and arrangement at will, provided only it has themode of action above described. It is manifestly immaterial whether the supports are separately constructed and applied to the frame, or whether they are made in one piece, or whether they are simply suitable surfaces formed integral with the frame.

Having described my invention, what I claim isj 1. In a linotype-maehine, a mold and a slug-ejector, in combination with means for rigidly supporting the mold against the thrust of the ejector.

2. In combination with the wheel and the mold mounted therein, an ejector to expel the slug, and front supports against which the ends of the mold bear during the action of the ejector.

3. In a linotype-maehine, a inold movable in the direction in which the slug is ejected, a blade acting from the rear to eject the slug, and a fixed front support to sustain the mold bodily in opposition to the thrust of the ejector.

4. In a linotype-maehine and in combination, the ejector, the sectional mold, and rigid means bearing against both the cap and body sections of the mold to sustain them against the thrust of the ejector.

In testimony whereof I hereunto set my hand, this 29th day of May, 1903, in the presence of two attesting, witnesses.

PHILIP T. DODGE. lVitnesses:

JOHN F. GEORGE, M. A. DRIFFILL.

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